Cock.



PATENTED OCT. 4, 1904.

A. OBRIEN.

COCK.

APPLICATION FILED Nov. 23. 1900.

N0 MODEL.

J4. SM1 AM EN@ WM@ NITED STATES Patented October 4, 1904.

ARTHUR OBRIEN, OF CHICAGO, ILLINOIS.

oooK.

SPECIFICATION forming part of Letters Patent N o. 771,567', dated October 4, 1904.

Application iiledNovember 23, 1900. Serial No. 37,488. (No model.)

To @ZZ whom it may concern:

Be it known that I, ARTHUR OBRIEN, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Cocks, of which the following is a specification.

My invention relates especially to a novel form of valve-seatand valve-casing which is adapted to various forms of cocks and faucets and which is herein shown and described as adapted for use as a iiush-tank valve for water-closets.

The object of my invention is to provide a valve which will act quickly under any head or pressure of water, which will seat itself truly at all times upon the valve-seat, which will not water-hammer, which will automatically open to admit air into the pipe of the faucet when it is desired to Withdraw the Water from the pipes to prevent freezing, andv which will possess various advantages over other valves in its simplicity, durability, and economy of construction.

My invention consists, essentially, in a floatvalve consisting of an inverted cylindrical cup or bell supported in an outer cylindrical shell, the latter serving both to hold the air within the bell and to guide the valve and adapt it to seat itself truly at all times by the buoyancy of the air within the valve and the pressure of the water beneath and around the same; and the invention also consists in certain features of construction and combination of parts hereinafter particularly described and claimed with reference to the accompanying drawings, whereinl Y Figure l is avertical section through a tank and tank-valve, the latter illustrating the essential features of my invention and showing the valve in a closed position; Fig. 2, a hori- Zontal section in line y y of Fig. l; Fig. 3, a horizontal section in line a fr of Fig. 1; and Fig. 4, a vertical section of the valve, shown at right angles to and-on line e e of Fig. l.

The valve-casing A consists of a valve-cylinder A', having an internal thread a and flange A2 at its base and a supply-pipe section A3 in the axis of said cylinder below the valvecylinder A and threaded externally to make connection with a supply-pipe and to provide a threaded section to receive a nut B, which screws onto it and securely holds it upon the tank C, the section A3 being passed through the bottom C of the tank and the liange A2 of the valve-casing bearing upon the Lipper surface of the bottom of the tank.

The internal thread u, of the valve-cylinder is fitted with a cylindrical valve-shell D, truly bored to receive the cup-valve E and provided with oppositely-disposed externally-tlneaded segment projections CZ, which fit the internal thread a of the valve-casing to bring the axis of the valve-shell D coincident with the axis of the valve-casing A and also provided with segment-shaped oppositely-disposed outer walls rl, which are of a diameter suiiiciently less than that of the interior diameter of the casing A to provide segmental water-channels a upon each side of the valve-shell and leading from the supply-chamber a2 beneath the valve-shell to the discharge-aperture f of a valve-seat f and'cap F, the latter having an outer thread f2, which [its the internal thread (a of the valve-casing. The discharge-aperture f is a bored or cored hole through the axis of the cap F, and the valve-seat f is a peripheral rim projection upon the under side of the cap F, against which the bearing su r-` face or face of the valve E rests to close the discharge-aperture f, and the said bearingsurface preferably consists of a disk of rubber or suitable material held in a recess in the top of the valve by a valve-stem e screwing into the top of the valve to hold it firmly thereon, the said valve-stem projecting upwardly therefrom through the axis of the discharge-aperture and above the same a sufficientdistance to Vbe operated upon by a lever Gr, which is pivoted at g upon one side of the cap F and extends diametrically across the same, as shown in Fig. 2, and is connected with an L-shaped rod g3, the vertical arm of which carries a floatball H of any well-known or preferred construction.

The lever G has a vertical post g2 extending upwardly therefrom in the axis of the Valve, as shown in Fig. l, and is threaded and iitted at its upper end with a bell deiector I, the latter serving to shed the water around the valve and downwardly therefrom and prevent it from spurting up into the tank in a stream, as would be the case when the valve opens if the discharge-aperture were not so guarded.

The valve-shell l) has a drain-aperture (Z2, preferably a number of them, which allow any water which may get below the valve to escape thcrefrom'when the supply-pipes are emptied in very cold weather to prevent freezing and also to allow the water to follow up below the air within the valve a limited distance, as shown by dot lines in Fig. 1, and thus hold the air-pressure under sufficient tension to quickly lift the valve when the pressure is released therefrom.

A packing f 3 is placed between the flange f4 of the cap F and the upper end of the valve-casing A, and a valve of simple construction may thus be manufactured at small cost. The buoyancy of the valve is sufficient at all times to be lifted wherever the head of water is on or above thc level of the valveseat, and with a much greater head of water the valve will be held tight against its seat at all times. rlhe valve may be readily adapted for use as a stop-cock, gate-valve, faucet, or wherever a vertically-reciprocating valve is employed andhas obvious advantages over a Valve which is lifted by direct pressure of the Water only or closed by its own weight, as with the usual check-valve.

I claim as my invention and desire to secure by Letters Patent- 1. A cock-comprising an internally-threaded, upwardly-opening valve-casing, an eXternally-threaded valve-shell removably secured therein, a plurality of ports in the lower end of said shell, a plurality of waterways intermediate the casing and the shell, an automatic reciprocating cup-valve in said shell, a valveclosure thereon, an externally-threaded, centrally-apertured cap engaged in the upper end `of said casing, a valve-seat thereon, a valvestem axially engaged on said cup and extending upwardly through thev aperture in said cap, a float, an arm pivotally connecting the float with said cap and operatively engaging on said stem and a dellector rigidly engaged on the arm above said aperture.

2. In a device of the class described the combination with an internally-threaded, upwardly-opening valve-easing, of a centrallybored valve-shell therein, a reciprocating cupvalve in said bore, a screw-threaded cap engaged in the upper end of said casing and containing an upwardly-opening discharge-aperture concentric with the bore of said casing, a valve-seat, a valve-closure, a valve-stem axially engaged on the upper end of the cup eX- tending through the aperture in the cap, a float-arm pivoted on the ca'p adapted to engage the upper end of said valve-stem, a float thereon, an upright shaft rigidly secured on the arm opposite the contact-point with said stem and a deiiector on said shaft.

ARTHUR OBRIEN.

Titnessesz WM. H. RowE, CARLE H. SCI-IAFER. 

